KDE does not allow full resolution

[simonf]

Hi,

after updating to Gutsy Gibbon my KDE uses only a small fraction of the available screen. More precisely, the X Server apparently runs at 1600x1200 whereas at the same time KDE uses only the upper left corner of size 1024x768. In the KDE settings I can select only between 1024x768, 800x600 and 640x480. Similarly, the log-in screen uses only the upper left corner. What is going on?

I'm not posting any config or log files since up to now I have no idea which of them are relevant to this problem.

Cheers,
Simon

[Rog131]

Re: KDE does not allow full resolution

What tells xrandr -q ?
xrandr - primitive command line interface to RandR extension


Here:

:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1050
default connected 1680x1050+0+0 0mm x 0mm

[simonf]

Re: KDE does not allow full resolution

Thanks for your reply. It tells:

xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 1600 x 1200
VGA-0 disconnected (normal left inverted right)
DVI-0 connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 0mm x 0mm
1024x768 60.0*+ 60.0
800x600 60.3
640x480 59.9
S-video disconnected (normal left inverted right)

[Rog131]

Re: KDE does not allow full resolution

Hmm - do you two displays:

DVI connected is using 1600x1200 and LVDS connected 1024x768.

[simonf]

Re: KDE does not allow full resolution

Ah, I see. Maybe I should have added that I am running a laptop in a docking station. If I open the laptop, KDE fits perfectly into its screen, however, it does not on the regular external screen I am using.

However, it used to behave in a different way before the dist-upgrade. Usually, I don't open the laptop while it is in the docking station. But, if I remember correctly, when opening the laptop, the other screen used to become black and the laptop screen switched on at 1024x768.

Cheers,
Simon

[Rog131]

Re: KDE does not allow full resolution

Do you have intel ? ->

How to setup Dual Head for Intel Graphics with RandR 1.2
http://intellinuxgraphics.org/dualhead.html

it used to behave in a different way before the dist-upgrade

Check /etc/X11/. Do you have earlier versions of xorg.conf (before upgrade) ?.
Something like xorg.conf.20070929181441. Compare old and new. What has changed ?